Walker Products 250-25106 oxygen sensor for the 2014-2020 Mini Cooper 4-cylinder 2.0L, the 2014-2021 Cooper 3-cylinder 1.5L and other vehicles measures the oxygen in the exhaust gas to track combustion efficiency. This Walker Products oxygen sensor is a wide-band unit for the upstream position.
- Wide-band design that reads exhaust oxygen content and monitors the air-fuel ratio
- Electrodes made of a gas-permeable platinum layer
- Coating that protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Built for its specific application and fitment position, with the diagnostic feedback the ECU requires
- Measures oxygen levels to fine-tune the air-fuel mixture for fuel economy
Quick facts
- Part: Walker Products 250-25106 oxygen sensor
- Fits: 2014-2020 Mini Cooper 4-cylinder 2.0L, the 2014-2021 Cooper 3-cylinder 1.5L and other vehicles
- Position: Upstream
- Condition: New
A failing sensor can make the engine run poorly, raise fuel consumption and exhaust emissions, or turn on the malfunction indicator light. A damaged wiring harness or connector can be behind these signs too, so find the cause before you buy a sensor.
Fits
Starting with the 2017-2020 Mini Cooper Countryman 4-cylinder 2.0L, the 2017-2024 Cooper Countryman 3-cylinder 1.5L and the 2018-2023 BMW X2 4-cylinder 2.0L, this sensor fits those and many more BMW and Mini models. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
Build and materials
- Type: Wide-band oxygen sensor
- Electrode coating: gas-permeable platinum layer
- Condition: New
In the box
One oxygen sensor. The fitment calls for one per vehicle.
Frequently Asked Questions
Does this Mini Cooper oxygen sensor fit the 2014-2020 Mini Cooper 4-cylinder 2.0L?
Yes. Walker Products 250-25106 fits the 2014-2020 Mini Cooper 4-cylinder 2.0L and the 2014-2021 Cooper 3-cylinder 1.5L.
Is the 250-25106 oxygen sensor an upstream or downstream sensor?
It is an upstream sensor. Walker Products 250-25106 is listed for the upstream position, and the fitment calls for one per vehicle.
What protects the electrodes in this wide-band oxygen sensor?
The electrodes are made of a gas-permeable platinum layer. Its coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates in the exhaust gases.
What signs can a failing oxygen sensor cause?
The engine can run poorly, fuel consumption and exhaust emissions can increase, or the malfunction indicator light can come on. Newer vehicles also store fault codes in the ECU, some tied to the affected sensor.
Will this upstream oxygen sensor fit the 2018-2023 BMW X2 4-cylinder 2.0L?
Yes. This upstream oxygen sensor fits the 2018-2023 BMW X2 4-cylinder 2.0L.
